Phys. Rev. Lett.
82,
4586–4590
(1999)
Measurement of Charm Meson Lifetimes
G. Bonvicini et al. (CLEO Collaboration)
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G. Bonvicini1, D. Cinabro1, R. Greene1, L. P. Perera1, G. J. Zhou1, S. Chan2, G. Eigen2, E. Lipeles2, M. Schmidtler2, A. Shapiro2, W. M. Sun2, J. Urheim2, A. J. Weinstein2, F. Würthwein2, D. E. Jaffe3, G. Masek3, H. P. Paar3, E. M. Potter3, S. Prell3, V. Sharma3, D. M. Asner4, A. Eppich4, J. Gronberg4, T. S. Hill4, C. M. Korte4, D. J. Lange4, R. J. Morrison4, H. N. Nelson4, T. K. Nelson4, D. Roberts4, H. Tajima4, B. H. Behrens5, W. T. Ford5, A. Gritsan5, H. Krieg5, J. Roy5, J. G. Smith5, J. P. Alexander6, R. Baker6, C. Bebek6, B. E. Berger6, K. Berkelman6, V. Boisvert6, D. G. Cassel6, D. S. Crowcroft6, M. Dickson6, S. von Dombrowski6, P. S. Drell6, D. J. Dumas6,*, K. M. Ecklund6, R. Ehrlich6, A. D. Foland6, P. Gaidarev6, L. Gibbons6, B. Gittelman6, S. W. Gray6, D. L. Hartill6, B. K. Heltsley6, S. Henderson6, P. I. Hopman6, N. Katayama6, D. L. Kreinick6, T. Lee6, Y. Liu6, T. O. Meyer6, N. B. Mistry6, C. R. Ng6, E. Nordberg6, M. Ogg6,†, J. R. Patterson6, D. Peterson6, D. Riley6, A. Soffer6, J. G. Thayer6, P. G. Thies6, B. Valant-Spaight6, A. Warburton6, C. Ward6, M. Athanas7, P. Avery7, C. D. Jones7, M. Lohner7, C. Prescott7, A. I. Rubiera7, J. Yelton7, J. Zheng7, G. Brandenburg8, R. A. Briere8, A. Ershov8, Y. S. Gao8, D. Y.-J. Kim8, R. Wilson8, T. E. Browder9, Y. Li9, J. L. Rodriguez9, H. Yamamoto9, T. Bergfeld10, B. I. Eisenstein10, J. Ernst10, G. E. Gladding10, G. D. Gollin10, R. M. Hans10, E. Johnson10, I. Karliner10, M. A. Marsh10, M. Palmer10, C. Plager10, C. Sedlack10, M. Selen10, J. J. Thaler10, J. Williams10, K. W. Edwards11a,11b, A. Bellerive12a,12b, R. Janicek12a,12b, P. M. Patel12a,12b, A. J. Sadoff13, R. Ammar14, P. Baringer14, A. Bean14, D. Besson14, D. Coppage14, R. Davis14, S. Kotov14, I. Kravchenko14, N. Kwak14, L. Zhou14, S. Anderson15, Y. Kubota15, S. J. Lee15, R. Mahapatra15, J. J. O'Neill15, R. Poling15, T. Riehle15, A. Smith15, M. S. Alam16, S. B. Athar16, Z. Ling16, A. H. Mahmood16, S. Timm16, F. Wappler16, A. Anastassov17, J. E. Duboscq17, K. K. Gan17, C. Gwon17, T. Hart17, K. Honscheid17, H. Kagan17, R. Kass17, J. Lee17, J. Lorenc17, H. Schwarthoff17, A. Wolf17, M. M. Zoeller17, S. J. Richichi18, H. Severini18, P. Skubic18, A. Undrus18, M. Bishai19, S. Chen19, J. Fast19, J. W. Hinson19, N. Menon19, D. H. Miller19, E. I. Shibata19, I. P. J. Shipsey19, S. Glenn20, Y. Kwon20,‡, A. L. Lyon20, E. H. Thorndike20, C. P. Jessop21, K. Lingel21, H. Marsiske21, M. L. Perl21, V. Savinov21, D. Ugolini21, X. Zhou21, T. E. Coan22, V. Fadeyev22, I. Korolkov22, Y. Maravin22, I. Narsky22, R. Stroynowski22, J. Ye22, T. Wlodek22, M. Artuso23, S. Ayad23, E. Dambasuren23, S. Kopp23, G. Majumder23, G. C. Moneti23, R. Mountain23, S. Schuh23, T. Skwarnicki23, S. Stone23, A. Titov23, G. Viehhauser23, J. C. Wang23, S. E. Csorna24, K. W. McLean24, S. Marka24, Z. Xu24, R. Godang25, K. Kinoshita25,§, I. C. Lai25, P. Pomianowski25, and S. Schrenk25 (CLEO Collaboration)
1Wayne State University, Detroit, Michigan 48202
2California Institute of Technology, Pasadena, California 91125
3University of California, San Diego, La Jolla, California 92093
4University of California, Santa Barbara, California 93106
5University of Colorado, Boulder, Colorado 80309-0390
6Cornell University, Ithaca, New York 14853
7University of Florida, Gainesville, Florida 32611
8Harvard University, Cambridge, Massachusetts 02138
9University of Hawaii at Manoa, Honolulu, Hawaii 96822
10University of Illinois, Urbana-Champaign, Illinois 61801
11aCarleton University, Ottawa, Ontario, Canada K1S 5B6
11band the Institute of Particle Physics, Canada
12aMcGill University, Montréal, Quebec, Canada H3A 2T8
12band the Institute of Particle Physics, Canada
13Ithaca College, Ithaca, New York 14850
14University of Kansas, Lawrence, Kansas 66045
15University of Minnesota, Minneapolis, Minnesota 55455
16State University of New York at Albany, Albany, New York 12222
17The Ohio State University, Columbus, Ohio 43210
18University of Oklahoma, Norman, Oklahoma 73019
19Purdue University, West Lafayette, Indiana 47907
20University of Rochester, Rochester, New York 14627
21Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309
22Southern Methodist University, Dallas, Texas 75275
23Syracuse University, Syracuse, New York 13244
24Vanderbilt University, Nashville, Tennessee 37235
25Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
Received 8 February 1999; published in the issue dated 7 June 1999
We report measurements of the D0, D+, and Ds+ meson lifetimes using 3.7fb-1 of e+e- annihilation data collected near the ϒ(4S) resonance with the CLEO detector. The measured lifetimes of the D0, D+, and Ds+ mesons are 408.5±4.1-3.4+3.5fs, 1033.6±22.1-12.7+9.9fs, and 486.3±15.0-5.1+4.9fs. The precisions of these lifetimes are comparable to those of the best previous measurements, and the systematic errors are very different. In a single experiment we find that the ratio of the Ds+ and D0 lifetimes is 1.19±0.04.
© 1999 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.82.4586
DOI:
10.1103/PhysRevLett.82.4586
*Permanent address: Computing Devices Canada, Nepean, ON, Canada K2H 5B7. †Permanent address: University of Texas, Austin, Texas 78712. ‡Permanent address: Yonsei University, Seoul 120-749, Korea. §Permanent address: University of Cincinnati, Cincinnati, OH 45221.
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